import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from 'components/Login'
import Home from 'components/Home'
import Welcome from 'components/Welcome'
import Users from 'components/user/Users'
import Rights from 'components/power/Rights'
import Roles from 'components/power/Roles'
import Cate from 'components/goods/Cate'
import Params from 'components/goods/Params'
import GoodsList from 'components/goods/List'
import GoodsAdd from 'components/goods/Add'
import Orders from 'components/order/Order'
import Report from 'components/report/Report'

Vue.use(VueRouter)

const routes = [
  {path: '/', redirect: '/login'},
  {path: '/login', component: Login},
  {path: '/home',
   component: Home,
   redirect: '/welcome',
   children: [
    {path: '/welcome', component: Welcome},
    { path: '/users', component: Users },
    {path: '/rights', component: Rights},
    {path: '/roles', component: Roles},
    {path: '/categories', component: Cate},
    {path: '/params', component: Params},
    {path: '/goods', component: GoodsList},
    {path: '/goods/add', component: GoodsAdd},
    {path: '/orders', component: Orders},
    {path: '/reports', component: Report}
  ]}
]

const router = new VueRouter({
  routes,
  mode: 'history'
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //next 是一个函数，表示放行；
  //  next() 放行   next('/login')  强制跳转
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})

export default router